Home / 65,629.20-98,638.20-57,075.60

Finding the Fourth Proportional to 65,629.20, 98,638.20 and 57,075.60

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Solution

The fourth proportional to 65,629.20, 98,638.20 and 57,075.60 is: 85,782.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,629.20 : 98,638.20 = 57,075.60 : x
  2. Step 2: Convert to fraction form
    65,629.20/98,638.20 = 57,075.60/x
  3. Step 3: Cross multiply
    65,629.20x = 98,638.20 × 57,075.60
  4. Step 4: Simplify right side
    65,629.20x = 5,629,834,447.92
  5. Step 5: Solve for x
    x = 5,629,834,447.92/65,629.20
  6. Step 6: Final answer
    x = 85,782.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.